Petroleum Refining FCC Catalysts ah hian eng Molecular Sieves nge hman thin?
FCC (Fluid Catalytic Cracking) catalyst hi petroleum refining process-a hman thin multifunctional catalytic material class a ni a, hydrocarbon rit tak takte chu high-value-added product-ah te, gasoline, liquefied petroleum gas, leh light olefins-ah te tha taka chantir theih a ni. A tlangpuiin active components, matrix materials, binders, leh fillers te atanga siam an ni.
FCC Catalysts te tana Molecular Sieves chi hrang hrang leh hnathawh dan
FCC catalysts hian acidity sang tak, hydrothermal stability tha tak, leh anti{0}}wear property chak tak an nei a, hei hian high-temperature fluidization condition hnuaiah macromolecular hydrocarbons cracking, isomerization, leh hydrogen transfer ang chi reaction te a tichak thei a ni. Chubakah, molecular sieve type, rare earth content, acidity, leh pore structure te siamrem a nih chuan target product gasoline, propylene, leh LPG te yield leh selectivity chu a tha thei ang bera siam theih a ni bawk.
Chuvangin FCC catalyst-a molecular sieve hrang hrangte hian complementary catalytic role an nei ber a ni. Y-type molecular sieves leh an modified form te hi FCC catalysts core active components an ni. Beta molecular sieve hmang hian hydrocarbon bikte cracking, isomerization leh product selectivity tihchangtlun theih a ni. Functional additive angin ZSM-5 hian light olefins yield a ti tha thei a ni. Tin, ZSM-11 molecular sieve hi hydrocarbons shape-selective cracking leh light olefins regulation atan hman a ni bawk.
USY Molecular Sieve: Active Component pawimawh ber
Y-type molecular sieve a nichu FCC tan chuan cracking-active component bulpui ber a ni a,Ultrastable Y (USY) tih a ni.tih hi cracking zeolite type a tam ber a ni. A sang-silica Y emawDealuminated Y (NI) 1.1.an pahnih hian USY molecular sieve an ni. USY hi Y-type zeolite anga hriatthiam theih a ni a, stabilization treatment dealumination leh hydrothermal treatment te pawh a paltlang tawh a ni.
FCC catalyst te hian reaction leh regeneration cycle repeated an paltlang avangin temperature sang leh steam-rich environment te chu an tuar chhuak tur a ni. Chuvangin, USY hian hydrothermal stability sang tak a nei a, steam deactivation laka invenna chak tak a nei a, framework stability sang tak a nei a, molecule lian tak tak cracking theihna tha tak a nei bawk.
REY/RE-USY Molecular Sieve: Activity, Coke Leh Stability te a balance
Rare-earth modified Y zeolites hian FCC catalyst-ah industrial value nasa tak a nei a ni. Rare-earth elements inrawlh zingah hian La, Ce, leh Nd te an tel. Rare-earth ion exchange hian Y-type zeolite molecular sieves te thermal stability, hydrothermal stability, acidity, activity leh coke selectivity te a ti tha thei a ni.
Chuvangin, a...REY (Rare-Lei Y) 1.1.lehRE-USY (Rare-Lei Ultra-Stable Y) 1. A rilru a hah lutuk chuan a rilru a buai em em a.molecular sieves hi petroleum FCC-ah hian hman a ni tlangpui a, chu chu activity leh stability tihpun nan leh catalytic activity, coke yield, leh gasoline/diesel selectivity te inkara balance siam nan hman a ni.
Beta Molecular Sieve: Hydrocarbons bik tihdanglamna a ti tha
Beta hi USY ang lo takin FCC catalyst hluiah chuan mainstream core molecular sieve a ni lo. Mahse, chu ai chuan specific formulations emaw functional modified zeolite molecular sieves emaw a nihna a ni zawk.
Beta molecular sieve hmanga siam a niBEA topology a nei a, three-dimensional large-pore system a nei bawk. A acidity chak tak leh pore channel lian tak tak a neih avangin FCC application-ah hydrocarbon cracking, isomerization, leh hydrocracking-related reaction-a hman theih a ni a, chubakah middle-distillate selectivity tihchangtlunna atan leh hydrocarbon bikte inthlak danglamna tichak turin a hmang thei bawk.
ZSM-5 Molecular Sieve: Light Olefins siam chhuahna a tichak
A chanvo tur chuZSM-5 molecular sieve hmanga siam a niin FCC processes chu a danglam a, FCC catalyst additive angin a thawk a ni. Y-type zeolite hian oil molecule lian tak tak-a crack-naah mawhphurtu ber a nih laiin, ZSM-5 hian gasoline-range hydrocarbons tihdanglam belh zelna tur a ngaihtuah a, light olefins siam chhuahna a tichak bawk.
ZSM-5 zeolite hian MFI framework a nei a, microporous structure a nei a, shape-selective catalytic characteristics langsar tak a nei bawk. FCC system-a ZSM-5 dah hian propylene, ethylene, LPG, leh light olefins te yield a tipung tlangpui a, gasoline a tihtlem emaw, gasoline olefin composition a modulate emaw a ni. Tin, USY leh ZSM-5 molecular sieves te inzawmkhawm hi FCC catalyst system pangngai tak a ni.
ZSM-11 Molecular Sieve: Cracking emaw, a pianzia thlan chhuah emaw a tidanglam thei
ZSM-11 molecular sieve hmanga siam a niMEL topology-ah a tel a, ZSM-5-a MFI structure nen a inang hle. FCC process hrang hrang, shape-selective cracking leh olefin regulation-a a hnathawh pawh hi ZSM-5 molecular sieve nen a inmil hle bawk.
FCC industrial practice-ah chuan ZSM-11 molecular sieve hi hydrocarbon cracking, aromatization, leh isomerization atan hman theih a ni a, FCC catalyst additive atan pawh hman theih a ni bawk. Mahse, industrial-scale FCC hman danah chuan ZSM-11 molecular sieve hi ZSM-5 aiin a pawimawh lo zawk hle.
Sinmat Chemical a niFCC catalyst-te tana zeolite molecular sieve supply-naah a specialise a, Y-type molecular sieves (NaY, HY, USY, REY, RE-USY, DAY), Beta molecular sieve, ZSM-5 molecular sieve, leh ZSM-11 molecular sieve te pawh a tel. A chipchiar zawkna chu product information page-ah hian en theih a ni.
